Explanation

Maleic-fumaric acid shows cis-trans isomerism.

Maleic acid is the cis-isomer of butenedioic acid

whereas fumaric acid is the trans-isomer.

ND10-9-2023

Explanation

Ribosomal RNA (rRNA) makes up the largest proportion of total cellular RNA. 

rRNA is the primary component of ribosomes, which are essential for protein synthesis.

It constitutes roughly 80% of the total cellular RNA. 

Explanation

The organelle that has increased significantly in the muscle cells of an active athlete compared to a physically inactive individual of the same age is the Mitochondrion. 

Mitochondria are known as the "powerhouses" of the cell because they are responsible for producing the majority of the cell's energy in the form of ATP through aerobic respiration.